Projects per year
Personal profile
Research profile
Works within the subject areas of buildings' energy consumption and environmental impact (LCA), indoor climate, ventilation and Legionella. Has specific knowledge of the building regulations and the energy labeling scheme. The work includes official service, research projects and teaching.
Keywords
- Energy
- Construction
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Collaborations from the last five years
Dive into details by clicking on the dots.
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REV-UP: IntegRated clean Energy harVesting modUlar enveloPe systems for Positive energy buildings
Rose, J. (PI) & Kragh, J. (PI)
01/11/2025 → 31/12/2028
Project: Research
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Legionella og vandinstallationer på skoler i Hovedstadsområdet
Bjørn Skov Nielsen, N. (Project Manager) & Kragh, J. (Project Participant)
01/03/2025 → 28/02/2026
Project: Research
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Legionella-SIKRING
Kragh, J. (Project Participant) & Jensen, R. L. (Project Participant)
01/01/2025 → 31/12/2027
Project: Research
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Kortlægning og analyse af tekniske løsninger i dispensationssager i forbindelse med renovering
Grangaard, S. (PI), Hansen, A. R. (Project Participant), de Place Hansen, E. J. (Project Participant), Wahedi, H. (Project Participant), Kragh, J. (Project Participant) & Rose, J. (Project Participant)
15/09/2025 → 31/12/2025
Project: Consultancy
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Kortlægning af omfang og tendenser for ændret anvendelse af bygninger
Jensen, J. O. (PI) & Kragh, J. (PI)
01/09/2025 → 31/12/2025
Project: Research
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Assessing Energy Performance Certificate Data over Time: Evidence from Denmark
Schaffer, M., Marszal-Pomianowska, A., Wittchen, K. B., Kragh, J., Pomianowski, M. Z. & Provera, A., 2 Jan 2026, Proceedings of the 15th REHVA HVAC World Congress - CLIMA 2025. Zilio, C., Busato, F., Mazzarella, L. & Noro, M. (eds.). Vol. 2. (Lecture Notes in Civil Engineering, Vol. 763).Research output: Contribution to book/anthology/report/conference proceeding › Article in proceeding › Research › peer-review
Open Access -
Beregning af nettovarmebehov og omkostninger ved energieffektivisering af bygninger frem mod 2050
Kragh, J., Rose, J. & Aggerholm, S., 19 Dec 2025, København: Institut for Byggeri, By og Miljø (BUILD), Aalborg Universitet. 38 p. (BUILD Rapport; No. 17, Vol. 2025).Research output: Book/Report › Report › Communication
Open AccessFile4 Downloads (Pure) -
Do Historic Buildings Have Poor Energy Performance, and Will Energy Optimization Compromise Their Historic Values? A Study of Danish Apartment Buildings
Jensen, J. O., Jensen, O. M. & Kragh, J., 18 Sept 2025, In: Heritage. 8, 9, 17 p., 389.Research output: Contribution to journal › Journal article › Research › peer-review
Open AccessFile15 Downloads (Pure) -
Nedrivning: Omfanget af og årsager til nedrivning af bygninger i perioden 2012-2023
Jensen, J. O., Kragh, J. & Jensen, O. M., 2025, Institut for Byggeri, By og Miljø (BUILD), Aalborg Universitet. 98 p. (BUILD Notat, Vol. 2025).Research output: Book/Report › Report › Research
Open AccessFile131 Downloads (Pure) -
Omkostninger og energibesparelser ved energieffektivisering af bygninger frem mod 2050
Kragh, J., Rose, J. & Aggerholm, S., May 2025, 1. udgave ed. AAU: Institut for Byggeri, By og Miljø (BUILD), Aalborg Universitet. 70 p. (BUILD Rapport; No. 05, Vol. 2025).Research output: Book/Report › Report › Communication
Open AccessFile249 Downloads (Pure)
Datasets
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Dataset of smart heat and water meter data with accompanying building characteristics
Schaffer, M. (Creator), Veit, M. (Contributor), Marszal-Pomianowska, A. (Data Manager), Frandsen, M. (Contributor), Pomianowski, M. Z. (Contributor), Dichmann, E. (Contributor), Sørensen, C. G. (Contributor) & Kragh, J. (Contributor), VBN, 27 Nov 2023
DOI: 10.5278/7e93e42e-38fc-4d87-ad68-ff1a2d1091aa, https://www.forefront.aau.dk/
Dataset
File
Activities
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Præsentation af projekt om Legionellaforekomst i folkeskoler i Hovedstadsområdet
Kragh, J. (Lecturer) & Nielsen, N. S. (Lecturer)
12 Nov 2025Activity: Talks and presentations › Conference presentations
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Webinar om bygningsreglementets krav til efterisolering
Kragh, J. (Lecturer)
8 Nov 2023Activity: Talks and presentations › Conference presentations
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DS/S-316 - Varme- og Kølesystemer i bygninger (External organisation)
Kragh, J. (Chairperson)
26 Mar 2021 → 26 Mar 2024Activity: Memberships › Membership of committees, commissions, boards, councils, associations, organisations, or similar
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DS/S-313 - VENTILATION I BYGNINGER (External organisation)
Kragh, J. (Member)
26 Mar 2021 → 26 Mar 2024Activity: Memberships › Membership of committees, commissions, boards, councils, associations, organisations, or similar
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DS/S-314 - Vandforsyning (External organisation)
Kragh, J. (Member)
13 Feb 2020 → 13 Feb 2024Activity: Memberships › Membership of committees, commissions, boards, councils, associations, organisations, or similar
Press/Media
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Ugens kursus fra Teknologisk Institut - Legionella-temadag 2025
28/10/2025
1 item of Media coverage
Press/Media: Press / Media
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Debat: Bygningshub - data til den grønne omstilling
29/10/2024
1 Media contribution
Press/Media: Press / Media
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Energirenovering giver massive gevinster
03/10/2021
1 item of Media coverage
Press/Media: Press / Media
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Hvordan går det med energirenovering af de danske parcelhuse?
05/11/2020
1 item of Media coverage
Press/Media: Press / Media
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Ventilation i eksisterende etageboliger – hvorfor og hvordan?
Kragh, J., Knudsen, H. N., Afshari, A., Rasmussen, B., Gunnarsen, L., Vogelius, P. & Bergsøe, N. C.
20/10/2020
2 items of Media coverage
Press/Media: Press / Media